Refinishing composition



Patented A r. 29, 1924.

UNITED STATES PATENT OFFICE.

JOHN E. SMITH, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO THOMSON WOOD FINISHING COMPANY, OF PHILADELPHIA, PENNSYLVANIA, A CORPORATION OF PENN SYLVANIA.

No Drawing.

To' all whom it may concern:

Be it known that I, JOHN E. SMITH, a citizen of the United States, residing in Philadelphia Pennsylvania, have invented Refinishing Compositions, of which the following is a specification.

One object of this invention is to provide a liquid composition particularly designed for preparing for refinishing, varnished or painted surfaces which'have alligatored,

cracked or crazed, without removing the original paint or varnish, and the invention more especially contemplates a liquid mixture which in addition to slightly softening and bondi with the varnish surface to which it is app ied, shall cause the various portions orareas into which this material as separated tumors or less coalesce and rovide or form a smooth ishing materials may be be filled so as to surface to which applied. p

In carrying out my invention, in atypical case I mix together twenty-five parts by volume of ethyl alcohol, five parts of methyl alcohol, fifteen parts of benzol, twelve parts of a suitable resmous material such as s iritsoluble Manila or other copal gum, an one part of acetone. If desired, I may in addition mix with the above noted liquid 3. small quantity of oil of citronella or other material to give it a pleasing odor.

The above liquid mixture, when applied in one or any required number of coats to a varnished orpainted surface which requires refinishing because of crazing, softens the same, causing such crazing to be wholly or artially obliterated. The volatile ingre ients of the composition will thereafter evaporate so that the treated surface will dry hard, in which condition it is ready for sanding and finishing and for this purpose nnrimsnme CbMPOSI'rION.

Application filed May 12, 1922. Serial No. 560,458.

one or more coats of any suitable varnish or other finishing material may be applied in the well understood manner. In place of copal gums I may use other resinous material, including s hellac or synthetic resins.

While the proportionsof the ingredients above named may bevaried to some extent without departing from my invention, it is essential that the composition possess the quality first of slightly softening the body of paint or varnish to which it is applied and then filling, either partially or wholly, the cracks therein to form a uniformly smooth surface and second, it must possess the abilvity of thoroughly drying so as to leave the surface to which it has been applied in-a hard dry condition in order that it may be subsequently finishedwithin a reasonable tlme.

From the above description it will be appreciated that by the use-of my invention there is no necessity for removing the paint or varnish on the surface which is to be refinished, so that I am enabled to save the labor hitherto required for this work and after the application of my com sition such surface may be finally finished by the use of ordinary varnishes or paints.

I claim:

v 1. A composition for treating cracke finished surfaces comprising a mixture of ethyl and methyl alcohols, benzol, a soluble resmous material and acetone, in the roportions necessary to soften and fill a cracked finished surface to which it is applied.

2'. A composition for treating cracked finished surfaces comprising thirty arts of alcohol, fifteen parts of benzol, twe ve parts of resinous material, and one part of ace- 80 tone.

JOHN E. SMITH. 

